body {
    background-color: #f8f9fa;
    font-family: 'Microsoft YaHei', sans-serif;
}

.card {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 10px;
    overflow: hidden;
}

.card-header {
    font-weight: bold;
}

.list-group-item {
    transition: all 0.3s ease;
}

.list-group-item:hover {
    background-color: #f8f9fa;
}

#resultArea {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.winner-item {
    text-align: center;
    padding: 15px;
    border-radius: 8px;
    background-color: #f8f9fa;
    margin-bottom: 10px;
}

.modal-content {
    border-radius: 15px;
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-danger:hover {
    background-color: #bb2d3b;
    border-color: #b02a37;
}